| 石墨炉原子吸收光谱法连续测定化探样品中金,银,镓的研究 |
| |
| 引用本文： | 余煜棉,张俊浩.石墨炉原子吸收光谱法连续测定化探样品中金,银,镓的研究[J].黄金,1996,17(3):47-51. |
| |
| 作者姓名： | 余煜棉 张俊浩 |
| |
| 作者单位： | 广东工业大学 |
| |
| 摘 要： | 本文提出在盐酸－碘化钾介质中，用ＭＩＢＫ萃取，硫脲反萃取，石墨炉原子吸收光谱法连续测定化探样品中的Ａｕ、Ａｇ、Ｇａ三种元素，经萃取反萃取既分离了干扰元素，又能提高测定灵敏度和精密度．文中研究了不同石墨管对测定的影响，用Ｌ＇ＶＯＶ理论探讨镍对镓的基体改进作用和机理．金、银、镓测定的相对标准偏差分别为５．２％、４．８％、６．２％，回收率在９３．３％～１０６．５％之间．
|
| 关 键 词： | 石墨炉 原子吸收光谱法 金 银 镓 化探样品 |
The study of continuous determination of An, Ag, Ga in chemical prospecting sample by GFAAS |
| |
| Yu Yumian et al..The study of continuous determination of An, Ag, Ga in chemical prospecting sample by GFAAS[J].Gold,1996,17(3):47-51. |
| |
| Authors: | Yu Yumian |
| |
| Abstract: | This paper brings a method of extraction by MIBK and antiextraction by thiourea solution in media of hydrochloric acid-potassium iodide and then the continuos determination of Au, Ag,Ga in chemical prospecting sample by GPAAS. The sensitivity and precision were increase with interferences depressed. The influence of graphite tubes on the determination of An, Ag, Ga was discussed. The effect and mechanism of Ni for use as matrix modification reagent of Ga were also discussed according to L' VOV theory. The relative standard deviations of determination of An, Ag, Gaare 5. 2%, 4. 8% and 6. 2 % respectively. The recovery ratio is between 93. 3-106. 5 %. |
| |
| Keywords: | GFAAS extraction-antiextraction An Ag Ga chemical prospecting sample continuous determination |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
